Other (Expense) Income, Net (Schedule Of Other (Expense) Income, Net) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2012		Mar. 31, 2011
Other (Expense) Income, Net [Abstract]
Interest income	$ 525		$ 537
Interest expense	(1,131)		(980)
Foreign currency gains, net	1,557	[1]	3,103	[1]
Foreign currency contracts losses, net	(1,743)	[2]	(1,613)	[2]
Other (expense) income	(82)		109
Total other (expense) income, net	$ (874)		$ 1,156

[1] Our foreign currency gains, net are predominantly attributable to the re-measurement gains or losses on our net balances of monetary assets and liabilities in our foreign subsidiaries which were primarily denominated in the Euro, and to a lesser extent, the British Pound and Canadian Dollar. The foreign currency re-measurement adjustments to these balance sheet items are calculated by comparing the currency spot rates at the end of a month to the spot rates at the end of the previous month.

[2] Relates to changes in fair value of our forward foreign currency contracts not designated as hedging instruments. See Note 15 — Derivative Instruments for further details.